Locking mechanism for railway dump-cars.



G. W. RUSSELL.

LOGKING- MEGHANISM FOR RAILWAY DUMP CARS.

APPLICATION IILBD FEB. 18, 1909.

' Patented Aug. 9, 1910.

2 SHEETS-SHEET 1.

ICZZVZILOJIWJLZV seZZ G. W. RUSSELL. V LOOKING MECHANISM FOR RAILWAYDUMP CARS.

APPLICATION FILED FEB.18,v1909. Patented Aug. 9, 1910' Z SHEETS-SHEET 2.

WI messes UNITED STATES NT 1|; FFIC CLINTON W. RUSSELL, OF DETROIT,MICHIGAN.

LOCKING MECHANISM FOR RAILWAY DUMP-CARS.

Specification of Letters Patent.

Application filed February 18, 1909.

Serial .No. 478,669.

which the following is a specification, refer- 7 once being had thereinto the accompanying drawings.

The invention relates to railway dump cars, and consists in the meansemployed for normally locking the car in upright position.

In the drawingsF.igure 1 is an end elevation of the car; Fig. 2 is apartial side elevation thereof; Fig. 3 is a view similar to Fig. 1 ofthe locking mechanism; and Fig. 4 is a similar view with the parts inunlocked position.

A is the box or body of the car, which is centrally pivotally supportedby brackets 13 so as to be capable of tilting sidewise in eitherdirection. The brackets B are mounted upon the longitudinally-extendingsills C which in turn are mounted upon the trucks D. Any suitable meansfor tilting the car may be employed, but, as shown, E is a cable whichpasses around a sheave F and engages a drum Gr upon a shaft H.

Usually cars of this type are held normally in upright position bychains arranged on opposite sides thereof, which are connected to thetruck and are provided with a detachable link which when opened willpermit of the dumping of the car. An objection to this chain lockingmeans is that it is practically impossible to take up all the lostmotion and consequently when the cars are in transit there will be moreor less oscillation, frequently resulting in the breaking of the chainsand the dumping of the load. Furthermore, the chains can only be Idisengaged when the car is standing still.

With the present invention, a locking means is provided in which alllost motion may be eliminated, and which may be disengaged by anoperator upon the side of the track while the car is in motion.

I are hooks depending from the car body, I

mounted upon the longitudinal sills C at the end thereof.

N is a rock shaft extending longitudinally of and journaled in bearingson the bar M, and O is a finger or detent upon this rock shaft forengaging the inner end of the dog J and holding the same in engagementwith the hooks O.

P is a lever secured to the rock shaft N and extending adjacent to thebar M toward the side of the car into a position where it may beoperated by a person at the side of the track.

With a construction as shown and described, in the normal position ofthe parts, as illustrated in Figs. 1 and 3, the dogs J are in engagementwith the hooks I, and are themselves held from movement by the detents0. As these parts are arranged upon opposite sides of the car, they willeffectually hold the body from tilting in either direction. To unlockthe car the operator adjusts the lever P, which is normally held frommovement by any suitable holding device, such as indicated at Q. Thisadjustment of the lever disengages the detent 0 from the dog J,permitting the latter to swing by gravity into the position indicated inFig. 4:. This will release the hooks I and permit that side of the carto tilt upward. Upon the restoration of the car body to its normalposition the hooks I will first engage the projecting shoulder J of thedog J, and will swing the latter into a position where it may again beengaged by the detent O. Thusby raising the lever P and engaging it withthe holding device Q the parts will again be securely locked, and duringthis movement the detent O will'take up all lost motion.

What I claim as my invention is:

In a dump car, the combination with a frame and a tiltingbody mountedthereon, of a cross sill on said frame beyond the end of said body, ahook depending from said body, a dog pivotally mounted upon said crosssill in engagement with said hook, and a rockable detent having awedging engagement with said dog.

In testimony whereof I aiiix my signature in presence of two witnesses.

CLINTON' W. RUSSELL.

Patented A11 9, 1910.-

